diff --git a/model/用例描述/导航系统用例描述.doc b/model/用例描述/导航系统用例描述.doc
index d8bdf57..c2c5d4a 100644
Binary files a/model/用例描述/导航系统用例描述.doc and b/model/用例描述/导航系统用例描述.doc differ